Tray for use in conjunction with the chemical cleansing of silver



Sept. 11, 1923.

. R. A. FARALLA TRAY FOR USE IN CONJUNCTION WITH THE CHEMICAL CLEANSING OF SILVER Filed April 11, 1922 19-55 POBT/OMS Momaw 3 Bunrme 76 001 071153; E

, B A 5 .Bnss Peer/01v A, lllbp 2.597105,

8.9;: POBT/OIVS Mamas EELIVT/YE 72: 001 071/52 2% il/$55; Z.

Patented Sept. 11, 1923.

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BAOUL ALFRED FARALLA', or-'Nnwrom; in. '32.," assrenon, B -"IQIESNEJ assie MENTS, or oNnHALr, .TO CABLKEAFT AND ONE-HALF roosoar. mnur vnaffisorii or NEW YoRmiviY;

TRAY FOR USE IN CONJUNCTION WITH THE CHEMICAL CLEANSING OF SILVER.

Application filed April 11, 1922.

To all whom it may concern.

Be it known that I, Know. A. FARALLA, a citizen of the United States, and a resident of the county of Kings, city and State of New York, have invented a new and useful Tray for Use in Conjunction with the Chemical Cleansing of Silver, the complete specification of which follows.

There are several known chemicals which, when put into solution with water, can be used for cleansing silver. The solution is an electrolyte, using the silver as one electrode and some metallic element as the other. Usually upon boiling, electrolysis results,

' removing the foreign matter from the silver to the electrode. I do not claim this as part of my invention.

However, I have found that while the electro-chemistry of this process is successful the actual manipulation for practical use is cumbersome if not difficult and impossible. To this end I have invented a small tray of such metal as is required for any particular electrolysis, and of such design as wili permit the momentary immersion of the silver and electrode into the electrolyte, thereby giving the operator complete control over the time element in the process. This is important for continued electrolysis is detrimental to the silver. I find that hasty immersion into the electrolyte and immediate rinsing, with water, which my tray is designed to permit, facilitates the cleansing in many ways.

I have incorporated an illustration drawing showing one preferred embodiment of my invention. In all figures like letters represent like parts.

Fig. 1 shows a plan view of the complete tra I i 2 shows a cross section at the region XX Fig. 8 shows a cross section at the region YY Fig. 4 shows a full sectional elevation of the tray with the handles extended the entire length of the chains, taken thru the center of the tray and parallel to the axis XX.

In Figure 1, A represents one part of the main base and B the other. The slots C are provided so that the one part B may be guided over the other part A by means of the guide D, in the slots C. To increase Serial No. 551,690.

resist-ance'to bending and to form a supporting wall to the contents of the tray, the ends E are bent at right angles to the main base. The chain H is attached to the base pieces by the rings G. The wire handle I with the wooden grip J is provided so that the heat from the tray will not injure the hands of the operator. The corners F are bent down to keep the main base off the bottom of the electrolyte vat or pot if it is desired to place the tray temporarily in the vat.

Figs. 2 and 3 show sections of the tray at XX and YY respectively, like figures referring to like parts.

In Figure 4, the tray is shown in vertical section like figures referring to like parts throughout.

Having thus described my invention what I claim and what I desire to secure United States Letters Patent for, is

1. A combination supportive tray and electrolyte terminal, for use in the electro chemical cleansing of silver, which tray is composed of a main base consisting of two parts, movable relative to each other and of limited travel, which main base has two side supporting walls for securely retaining the contents of the tray and for increasing the resistance of the main base to bending, the corners of said main base being so bent as to elevate the main base plane above the resting plane of the tray.

2. A combination supportive tray and electrolyte terminal, for use in the electrochemical cleansing of silver, which tray is composed of a main base consisting of two parts, movable relative to each other and of limited travel, which main base'has two side supporting walls for securely retaining the contents of the tray and for increasing the resistance of the main base to bending, the corners of said main base being so bent as to elevate the main base plane above the resting plane of the tray, said tray being provided with chains and handles so as to be easily manipulated.

3. A combination supportive tray and electrolyte terminal, for use in the electrochemical cleansing of silver, which tray is composed of a main base consisting of two parts, movable relative to each other and of limited travel, which main base has two side supporting walls for securely retaining the contents of the tray and for increasing the resistance of the main base to bending, the corners of said main base being so bent as to elevate the main base plane above the resting plane of thetray, said tray being provided with chains and handles so as to be easily manipulated, which handles are pro- Vided with grips of such material as to form insulation from heat. v

In witness whereof I hereunto subscribe my name this 8th day of April, 1922.

RAOUL ALFRED FARALLA. Witnesses: I

WILLIAM C. DORGAN,' R. A. PARISIAN. 

